Doctoring means for gluing rollers



R. MINKOW 2,596,585

DOCTORING MEANS FOR GLUING ROLLERS 2 SHEETS-SHEET 1 JfiL J E15, i 00 O O MW Q N N W If: F w V @EYW/ 4v; J in? W E m mm? M R m A 1 I 5 MM Wm n\ w v Iv h\ 00 wilwsiill -iiiiliidaih May 13, 1952 Filed Oct. 6, 1948 INVENTOR. WfFf/W/WOW BY Patented May 13, 1952 UNITED AT'ES "r V l. CE

DOCTO'R'ING MEANS FOR: GLUIN G ROLIIER'S" RobertMi-nkow, New York; 3

Application October 6, 1948;, Serial No.: 53,107

(Cl. 118F261).

2 Claims. 1 This inventionrelates to gluing machines and is animprovement over the structureembodied in my ccpending application-Serial Number 2,270,

filed- January 14-, 1948,) for Gluing Machine, now

Patent No. 2,554,587..

An object of this inventionistc providea gluing. machine which is so constructed thatthe tapes of interengageable fasteners may be coated with glue or suitable adhesive, and atthe same time other articles may be. run through the: machine.

Another objectv of this invention is to provide in a gluing inachine an. adjustable scraping bar for the gluing: roller so that the: desired-depth. of glue on the gluing roller may bemaintained, the bar also including a scraping finger for removing all of the glue. in. alignment with the metal fasteners so that the latter will not stick together.

A further object of this invention is to provide agluing machine of this kind, incl-uding'a pair of adjustable tape guides mountedon the table for guiding the articles in a straight line. to the gluing roller.

With the above and other objects in view, my invention consists in the arrangement, combination anddetailsof construction disclosed in the drawings and specification, and then more particularly shown in theappended claims.

In the drawings:

Figure 1 is-a plan view, partlybroken away, of a gluing machine constructed according to an embodiment of this invention,

Figure 2 is a fragmentary sectional view taken on the line 22 of Figure 1,

Figure 3 is a fragmentary sectional view taken on the line 3-3 of Figure 2.

Referring to the drawings, the numeral l designates generally a frame or body structure constructed in the form of an upwardly opening receptacle or well Within which glue is adapted to be positioned. The frame [3 has rotatably mounted therein a gluing roller H which is formed with a peripheral groove or channel l2 between the ends thereof, and preferably adjacent one end.

The frame It has rotatably mounted therein a pair of pressure rollers l3 and M, disposed above the gluing roller l I and adapted to press the articles which are glued on one face thereof downwardly against the gluing roller II. The frame II] also includes a horizontally disposed table I5 over which the articles to be glued are moved, and on the delivery side of the pressure rollers I3 and M a plurality of pick-off fingers l6 are rockably mounted on a transverse guide and supporting bar H. The pick-off fingers I6 may be ad- 2 justed lengthwise ofthe-b'ar I T and are' ada'pted tocontact with thesurface of thegluing roller The tablehas mounted onthe upper side thereof a pair of lengthwise extending spaced apart angle-shaped guide members l3 and it, which havetheir inner sides 23 and 2| vertically disposed and resting onthe-upper surface of the table [5; The horizontal sides 22 and 23of the angle members l8 and I9 are formed with transversely extending elongated openings 24 and 25 through which bolts 26 and 2-1 respectively areextended so that the guide members [3 and I3 maybe adjusted toward or away from each other i so that anintereng-ageablefastening element 23 may slidably engage betweenthe vertical sides 23 and z i.

The guide members i 8and l3 are mounted in a position wherebythe metal locking elements 29 of the fastening means -28-wi1l ride over the grooveorchannel I2 and the-pressure rollers I3 and M are also formed with peripheral grooves or channels 30 and 3! respectively, adapted to overlie the groove [2. In this manner when the fastening means 28 ispassing through the machine, the metal elements 29 will not be placed under a'ny pressure.

The gluing roller 12 has associated therewith a glue removing bar 32 which extends transversely across the frame ll! and the bar 32 is carried by a supporting bar 33. The supporting bar 33 is slidably mounted on guide means 34 carried by the frame Ill, and the supporting bar 33 is constantly urged forwardly toward the gluing roller II by means of a tensionable spring 35. The spring 35 engages about a rearwardly extending rod 36 which is fixed at its forward end to the supporting bar 33 and extends through a guide 31 carried by the frame H).

A washer or collar 38 is fixed 0n th :rod 33 rearwardly of the guide 31 and a second collar 39 is slidable on the rod 36 and bears at its rear end against a rear guide 40 which is carried by the frame 10. A spring tensioning nut M is threaded on the rear portion of the rod 36 and a lock nut 42 is also threaded on the rod 35 and bears against the nut 41. The glue which enters the channel 12 at the lower portion of the gluing roller H is substantially entirely removed therefrom by means of a scraping finger 43 which is adjustably carried by the bar 33. The scraping finger 43 is formed at its rear end with a downwardly and right angularly disposed arm is through which a finger adjusting bolt 4-5 is rotatably mounted. The bolt 45 is threaded into the 3 bar 3 3 and the bolt 45 has fixed thereto a pair of collars 46 and 41 disposed on opposite sides of the arm 44. A knob 48 is fixed to the rear end of the bolt-45 so that this bolt may be rotatably adjusted to move the scraping finger 43 toward or away from the groove 12. V

In the use and operation of this machine, the guide members l8 and I9 are adjusted toward or away from each other so that th fastening means 28 may freely slide therebetween. The scraping bar 32 is adjusted toward or away from the gluing roller H so that the desired film of glue will be retained on the gluing roller for contact with the lower side of the tapes carried by the fastening means 28. When the scraping bar 32 has been properly adjusted, the scraping finger 43 may be moved forwardly into the groove or channel l2 so as to remove substantially all of the glue from this groove or channel in order that the metal elements 29 will not be contacted by the glue. At the same time that a fastening means 28 is being moved through the gluing machine, other flat articles which are to be glued on one face thereof may also be passed through the machine. In this manner the gluing machine may be used for specifically gluing the tapes of a fastening means such as an interengageable fastening means and may also be used for gluing other fiat articles of leather, plastic, fabric, cardboard or other material. 7 As shown in Figure 1, at least one of the lifting members I6 is formed with a pair of lifting fingers 49 which engage in the groove i 2 and a pair of lifting members I6 are disposed one on each side of the lifting member [a so that the fabric tape of the fastening means 2 8 will be removed from the gluing roller on the discharge or delivery side of the machine.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claims.

What I claim is:

1. A gluing machine comprising a frame, a gluing roller rotatably carried by said frame, an annular groove formed in said roller, a glue removing device disposed transversely of said frame including a pair of parallel guide means extending at right angles to th axis of said roller, a

4 scraper bar slidably carried by said guide mea for movement in a direction parallel to said guide means, spring means constantly urging said bar towards said roller, adjustable stop means connected to said bar limiting the movement of said bar towards said roller, a scraping finger slidably carried by said bar and engageable in said annular groove, and means carried by said bar and engaging said scraping finger for adjustably positioning the latter relative to said bar.

2. A gluing machine comprising a frame, a gluing roller rotatably carried by said frame, and a glue removing device disposed transversely of 1 said frame including guide means extending at right angles to the axis of said roller, a scraper bar disposed parallel to said roller axis slidably carried by said guide means for movement towards and away from the surface of the roller, bearing members carried by said frame in alignment with said guide means, elongated rods fixed at one end to said scraper bar and slidably extending through said bearing members, spring means fixed at one end to said rods and at the other end to said bearing members constantly urging said rods and said scraper bar towards said roller, the other ends of said rods being threaded, and adjusting nuts threaded on said other ends of said rods and abutting against said bearing members limiting the movement of said rods and said scraper bar towards said roller to thereby control the thickness of the glue film on said roller, and a forwardly extending finger member carried by said bar having an end engageable with said roller at a point disposed from the forward edge of said scraper bar.

ROBERT MINKOW.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,654,214 Evans Dec. 27, 1927 1,830,316 Ettl NOV. 3, 1931 1,986,502 Coulson Jan. 1, 1935 2,079,563 Reuter May 4, 1937 2,162,854 Minkow June 20, 1939 2,231,748 Clement Feb. 11, 1941 

